Home / 209,375,640.73-288,940,522.40-115,298,536.06

Finding the Fourth Proportional to 209,375,640.73, 288,940,522.40 and 115,298,536.06

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Solution

The fourth proportional to 209,375,640.73, 288,940,522.40 and 115,298,536.06 is: 159,113,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,375,640.73 : 288,940,522.40 = 115,298,536.06 : x
  2. Step 2: Convert to fraction form
    209,375,640.73/288,940,522.40 = 115,298,536.06/x
  3. Step 3: Cross multiply
    209,375,640.73x = 288,940,522.40 × 115,298,536.06
  4. Step 4: Simplify right side
    209,375,640.73x = 33,314,419,241,131,636
  5. Step 5: Solve for x
    x = 33,314,419,241,131,636/209,375,640.73
  6. Step 6: Final answer
    x = 159,113,157.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.